Tex. Transp. Code § 548.254
A vehicle inspection report is invalid after the end of the 12th month following the month in which the report is issued.
Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.
Acts 2013, 83rd Leg., R.S., Ch. 1291 (H.B. 2305), Sec. 28, eff. March 1, 2015.